Delivery truck box



FIG. 1 is a front perspective view of a delivery truck box;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left-side view thereof;

FIG. 5 is a right-side view thereof; and,

FIG. 6 is a top view thereof.

The broken lines depict portions of the delivery truck box that form no part of the claimed design. 

CLAIM The ornamental design for a delivery truck box, as shown and described. 